Any kid will be impressed by these rooms, including an amazing bunk room, a home theater for putting on plays, and a secret alcove with a special ladder.

Bunk Bed Room

Bunk Bed Room

In a California beach house designed by Erin Martin and owner Kim Dempster, the bunk room feels like a ship's cabin and is lined with six bunks, four on one side and two on the other. Grommets on the curtains are meant to evoke bubbles. The brass porthole mirror was in Dempster's house when she was a child. "Kids just love that room, and they'll hang out down there even when it's not bedtime," Dempster says. "You have your own little compartment, and you can get in and close the curtains."